Battery venting

[ramdough]

I have a battery tender that I leave on the batteries. They are about 3 years old Walmart batteries.

I noticed crystals forming on the top of each battery. I am wondering if they are overcharging or what what could be causing this.

 

[Ronmar]

Are they dusty? Could be minerals fromthe dust crystalizing with condensed moisture… what voltage is the tender holding the batteries at? Wash them off with soap water and a brush and rinse them clean and see if it returns…

 

[coachgeo]

what is name/model of charger? I got a low cost one long while back that ruined a battery in storage. Advertising for the product made you think it was a tender/maintainter...... It wasn't..... it was a trickle charger... so overtime its constant charging just cooked the battery.

 

[ramdough]

Are they dusty? Could be minerals fromthe dust crystalizing with condensed moisture… what voltage is the tender holding the batteries at? Wash them off with soap water and a brush and rinse them clean and see if it returns…

It looks like crystals. Not road dust. I will clean it to see how long it takes.


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[ramdough]

what is name/model of charger? I got a low expense on long while back that ruined a battery in storage. Advertising for the product made you think it was a tender/maintainter...... It wasn't..... it was a trickle charger... so overtime its constant charging just cooked the battery.

This one:

NOCO Genius GEN5X2, 2-Bank, 10A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries https://a.co/d/bG08psw


Should be a good one.


Batteries are $60 Walmart ones.


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[Third From Texas]

This one:

NOCO Genius GEN5X2, 2-Bank, 10A (5A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries https://a.co/d/bG08psw


Should be a good one.


Batteries are $60 Walmart ones.


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That's the one I have on my dual battery setup.

 

[Ronmar]

Do you have it set on the right mode, 12v vis 12v agm or 12v lithium?

 

[ramdough]

Do you have it set on the right mode, 12v vis 12v agm or 12v lithium?

Nope, it says 12v wich is the generic battery setting.


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[87cr250r]

Is it very hot where you're at? I hear batteries only lat 3-4 years in hot climates like Arizona.

 

[ramdough]

Is it very hot where you're at? I hear batteries only lat 3-4 years in hot climates like Arizona.

Yes and no…. They have been on the truck in a garage so not as hot as Arizona.


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[chucky]

I have a battery tender that I leave on the batteries. They are about 3 years old Walmart batteries.

I noticed crystals forming on the top of each battery. I am wondering if they are overcharging or what what could be causing this.
View attachment 896317

Might be time to drop all the cables and load test each battery and if a few bad convert to a 2 battery set up i did and its better now than it ever was !

 

[ramdough]

Might be time to drop all the cables and load test each battery and if a few bad convert to a 2 battery set up i did and its better now than it ever was !

What batteries did you end up with? Brand, model? Group 31’s?


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[chucky]

What batteries did you end up with? Brand, model? Group 31’s?


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I kept the original hawker agm ! just had 1 bad our of the 4 so i went the 2 battery system everyone pointed me to but i kept the 3rd battery in the 12 v position as a back up on the 12 side and for me to draw off of with my house batteries tie together at the flick of a switch so my house can be a back up to start the truck or the truck can charge the truck and house batts at the same time if my other options are down /no solar/no shore/no generator -inverter ! So atleast in any senario 1 out of the 4 will get u back up and running (REDUNDANCY) all ways have plan B.C.D.